No. 399.] NORTH-AMERICAN JUMPING MICE. 201 
Mr. Preble, in this revision of the group, has done a good 
piece of work in seemingly a very acceptable manner, he having 
had at his command practically all of the material available in 
our museums and private collections, including the types of all 
of the recently described forms, the specimens examined by him 
numbering nearly one thousand. 
Of the thirty specific and subspecific names applied to mem- 
bers of this group, seven of the nine synonyms are referred to 
the long known Zapus hudsonius. A list of the species and 
subspecies recognized by Mr. Preble here follows, with a brief 
statement of their ranges, so far as known, based on Mr. Preble’s 
excellent paper. Much still remains to be learned about the 
group, especially in respect to the geographical distribution of 
most of the forms, but a good foundation has been laid on which 
to build the final superstructure. 
SUBGENUS ZAPUS. 
1. Zapus hudsonius (Zimmermann). Type locality, Hudson Bay. From 
Hudson Bay south to New Jersey and in the mountains to North Carolina ; 
west to Iowa and Great Slave Lake. (Includes Z. 4. canadensis Batchel- 
der and Z. h. hardyi Batchelder.) 
1a. Zapus hudsonius ladas Bangs. Eastern Quebec, north to Hamil- 
ton Inlet, Labrador. 
Là. Zapus hudsonius americanus (Barton). Vicinity of Raleigh, N. C., 
north along the coastal plain to southern Connecticut and the lower Hudson 
ley. 
1c. Zapus hudsonius campestris Preble. Great Plains, from Mani- 
toba to Nebraska, and northeastern Colorado, west over eastern Wyoming. 
1d. Zapus hudsonius alascensis Merriam. Yakutat Bay, north to 
Yukon River. 
5 Pant tenellus Merriam. Known only from vicinity of Kamloops, B. C. 
Zapus A Allen. Rocky Mountain region, from New Mexico 
to forthece Albert 
3a. Zapus Rap minor Preble. Plains of Saskatchewan. 
36. Zapus princeps oregonus Preble. Blue Mountains of Oregon. 
4. Zapus major Preble. Known only from the type, from Warner 
oe Oregon 
5. Zapus isa did Preble. Known only from the type, taken in 
the Ruby Mountains, Nevada. 
6. Zapus trinotatus Rhoads. Coast region, from Frazer River, B. C., 
to northern California. (Includes Z. imperator Elliot.) 
